I was unaware that they’d updated Hangar360 to work with the M2P.
Last discussion on this was : Query about Hangar 360 with M2P
Attempts to contact them generated no responses.
Since then their website no longer has the compatibility page.
Indeed - their website has no mention of Hangar360 at all.
In fact the link from the Apple Store page for the app returns a 404 error.
But … really, this all matters not a jot, since the M2P has excellent pano mode built in and creates excellent 360 panos without any dependency on Hangar … and there are some excellent examples of them here : Kuula panos from Iceland .
Those are using the Zoom - but the Zoom and the Pro only differ in the camera. All firmware is identical for either.
My advice would be to try it as - auto - defaults. The M2 seems to do an excellent job of it.